Work from left to right for each key and fill in the required information.
Import Certificates
Column
Description
Key
Key alias of entry to import the key to.
Upload
Upload (or paste the content of) a PEM file with the complete certificate chain ordered with the end entity (signer) certificate first and followed by each issuer CA certificates or upload the individual certificates one at a time. For each file click the Add button to load the certificates. Use the X button to remove a certificate if needed.
Install in Token
This page only provides the option to include the certificate in the token.